NCERT Solutions for Class 11 Chemistry Structure of Atom Part 2

NCERT Solutions for Class 11 Chemistry Structure of Atom Part 2 Class 11 Chemistry book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 11 Chemistry chapter wise NCERT solution for Class 11 Chemistry Some Basic Concepts of Chemistry Part 1 and all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

NCERT Solutions for Class 11 Chemistry Structure of Atom Part 2

Class 11 Chemistry Structure of Atom Part 2

17. Calculate the wave number for the longest wavelength transition in the Balmer series of atomic hydrogen

18. What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is

19. The electron energy in hydrogen atom is given by Calculate the energy required to remove an electron completely from then= 2 orbit. What is the longest wavelength of light in cm that can be used to cause this transition?

20. Calculate the wavelength of an electron moving with a velocity of

21. The mass of an electron is kg. If its K.E. is J, calculate its wavelength.

22. Which of the following are isoelectronic species i.e., those having the same number of electrons?

23. (i) Write the electronic configurations of the following ions:

(ii) What are the atomic numbers of elements whose outermost electrons are represented by (a ?

(iii) Which atoms are indicated by the following configurations?

24. What is the lowest value of n that allows g orbitals to exist?

25. An electron is in one of the 3d orbitals. Give the possible values of n, l and ml for this electron.

26. An atom of an element contains 29 electrons and 35 neutrons. Deduce (i) the number of protons and (ii) the electronic configuration of the element.

27. Give the number of electrons in the species ,and

28. (i) An atomic orbital has n = 3. What are the possible values of l and ?

(ii) List the quantum numbers (and l) of electrons for 3d orbital.

(iii) Which of the following orbitals are possible?

29. Using s, p, d notations, describe the orbital with the following quantum numbers.

(a) n = 1, l = 0;

(b) n = 3; l =1

(c) n = 4; l = 2;

(d) n = 4; l=3.

30. Explain, giving reasons, which of the following sets of quantum numbers are not possible.

31. How many electrons in an atom may have the following quantum numbers?

(a)n = 4,

(b) n = 3, l = 0

32. Show that the circumference of the Bohr orbit for the hydrogen atom is an integral multiple of the de Broglie wavelength associated with the electron revolving around the orbit.